In the controller, QEMUTimer will be used in the implementation of timer simulation.
I wrote an auto-loading timer with a period of 1ms and the clock source used is QEMU_CLOCK_VIRTUAL. But it doesn't seem to be very accurate, because the actual time after I accumulated it to 500 times took about 700ms.
I think qemu's code will consume some time, is it true?
thank you ~